Generating Real Opportunities for Workforce Training and Hiring Act or the GROWTH Act This bill sets forth provisions to promote career and technical education and establish highway construction workforce development initiatives. Specifically the bill expands tax-exempt tuition programs (529 plans) to allow plans to pay transportation costs for attendance at workforce training programs and to repay student loan amounts, directs the Department of Transportation to make grants to establish highway construction workforce initiatives to attract, train, and place workers into highway construction careers, extends and expands the program for reimbursement of military spouses for professional relicensing costs due to a permanent change in duty station, and includes workforce development as an objective of the loan guaranty program of the Small Business Administration.